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- Ingersoll Rand
- 47588444001 38034914
- Motor Bearing Grease
- USA
- 180 × 35 × 100 mm
- 0.41 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Ingersoll Rand 47588444001 38034914 Motor Bearing Grease is a maintenance lubricant intended for motor-bearing applications associated with Ingersoll Rand compressed-air equipment. The part number 38034914 is identified as motor bearing grease in Ingersoll Rand spare-parts catalogs and is supplied for bearing lubrication during equipment maintenance.
Electric motor bearings operate under continuous rotational movement and are exposed to friction, mechanical loading, and heat generated during operation. Suitable bearing grease helps maintain a lubricating film between rolling elements and raceways, reducing direct metal-to-metal contact and limiting wear. Correct lubrication is particularly important in compressor installations where motors may operate for extended periods.
The 38034914 product is identified in parts listings as a 13.7 oz tube of motor-bearing grease, specified as POLYREX EM. This identification distinguishes it from compressor oil used in the rotary screw air end and from general-purpose lubricants intended for unrelated mechanisms. Bearing grease and compressor oil serve different lubrication requirements and should not be substituted for one another without an applicable equipment specification.
During maintenance, the grease is used where the motor-bearing service procedure calls for this lubricant. The quantity applied depends on the bearing arrangement and the manufacturer’s lubrication instructions. Excessive grease can increase churning resistance and operating temperature, while insufficient lubrication may accelerate bearing wear.
For maintenance teams, part number 38034914 provides a specific reference for lubricant procurement and service records. The relevant motor and bearing maintenance procedure determines where the grease is applied, how much is required, and whether the bearing is intended for relubrication or replacement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Model Reference | 47588444001 |
| Part Number | 38034914 |
| Product Name | Motor Bearing Grease |
| Product Type | Motor Bearing Lubricant |
| Product Category | Industrial Compressor Maintenance Consumable |
| Lubricant Form | Grease |
| Identified Grease Type | POLYREX EM |
| Primary Function | Lubrication of specified motor bearings |
| Application | Compatible Ingersoll Rand motor and compressed-air equipment |
| Package Description | 13.7 oz tube |
| Dimensions | 180 × 35 × 100 mm |
| Weight | 0.41 kg |
Product Features
- Bearing lubrication: Provides grease for specified motor-bearing maintenance applications.
- Dedicated part identification: Uses part number 38034914 for service planning and lubricant inventory.
- Identified grease formulation: Associated with POLYREX EM in product listings.
- Friction control: Helps reduce direct contact between moving bearing surfaces when applied correctly.
- Wear management: Supports bearing maintenance by maintaining the required lubricating film.
- Motor service compatibility: Intended for bearing lubrication where the applicable maintenance procedure specifies this product.
- Maintenance consumable format: Supplied as a grease product for controlled application during servicing.
- Equipment-specific use: Separates motor-bearing lubrication requirements from compressor oil-system maintenance.
- Lubrication planning: Supports scheduled service work and maintenance documentation.
- Bearing condition support: Appropriate lubrication helps manage frictional heating and wear under the specified operating conditions.
Working Principle
The 38034914 Motor Bearing Grease lubricates bearing contact surfaces by forming a protective film between rolling elements and their raceways. This film reduces direct surface contact and helps control friction during rotation.
Grease Application → Bearing Contact Surfaces → Lubricating Film → Reduced Friction and Wear
When the specified grease is applied to a compatible bearing, the thickened lubricant remains within the bearing’s lubrication area and supplies oil to the contact surfaces. The lubricating film separates surface asperities and helps reduce wear caused by repeated rolling contact.
Grease also helps protect lubricated surfaces from environmental contamination when the bearing arrangement and seals are designed to retain it. Its consistency allows it to remain in the bearing area rather than flowing away as readily as a low-viscosity liquid lubricant.
The performance of the lubrication depends on the grease formulation, bearing speed, operating temperature, mechanical load, and amount applied. Too little grease can leave contact surfaces inadequately lubricated, while overgreasing may increase churning losses and temperature. For this reason, the quantity and application method should follow the relevant motor service procedure.
The 38034914 grease is intended for specified bearing-lubrication applications. It does not replace the compressor’s circulating oil, which performs separate lubrication, sealing, and heat-transfer functions within an oil-injected screw compressor.
Role in an Ingersoll Rand Compressor System
The 38034914 Motor Bearing Grease belongs to the maintenance side of the motor and drive assembly rather than the compressor’s circulating oil circuit. It is applied to designated bearings when the relevant maintenance instructions call for this grease.
Maintenance Procedure → Bearing Inspection → Specified Grease Application → Motor Bearing Operation
| System Component | Function |
|---|---|
| Ingersoll Rand 38034914 Motor Bearing Grease | Lubricates specified motor-bearing contact surfaces |
| Electric Motor | Converts electrical energy into mechanical rotation |
| Motor Bearings | Support the rotating shaft and control radial or axial movement |
| Bearing Housing | Supports and locates the bearing assembly |
| Bearing Seals | Help retain lubricant and limit contaminant ingress |
| Motor Shaft | Transfers rotational power to the driven equipment |
| Compressor Air End | Compresses air using the motor’s mechanical output |
| Compressor Oil Circuit | Supplies the lubricant used within the applicable oil-injected compression system |
| Motor Maintenance Procedure | Defines bearing inspection and lubrication requirements |
| Vibration Monitoring Equipment | Helps identify changes in bearing or rotating-machine condition where fitted |
Industrial Applications
| Application | Typical Use |
|---|---|
| Industrial Air Compressors | Lubricating specified motor bearings during scheduled maintenance |
| Manufacturing Plants | Maintaining electric motor bearings on compressed-air equipment |
| Automotive Production | Supporting bearing service on compatible compressor drive motors |
| Packaging Facilities | Applying specified grease during motor maintenance |
| Process Industries | Maintaining motor-bearing lubrication in industrial utility equipment |
| Central Compressor Rooms | Servicing motor bearings on continuously operated compressor installations |
| Equipment Maintenance Workshops | Applying grease during approved bearing service procedures |
| Industrial Motor Maintenance | Supporting bearing lubrication where POLYREX EM is specified |
| Plant Utility Systems | Maintaining compatible motor-driven equipment |
| Preventive Maintenance Programs | Including lubricant application in documented bearing-service tasks |
Installation and Maintenance
- Verify the lubricant reference: Confirm that part number 38034914 is specified for the bearing being serviced.
- Isolate the equipment: Stop the motor and follow the site’s electrical isolation and lockout procedures.
- Identify the bearing arrangement: Determine whether the bearing is designed for relubrication and locate the designated grease application point.
- Review the service instructions: Establish the specified lubricant quantity, application method, and maintenance interval.
- Inspect the bearing area: Look for contamination, grease leakage, abnormal discoloration, or signs of overheating.
- Prepare the application point: Clean the grease fitting or surrounding area to prevent dirt from entering the bearing.
- Check lubricant compatibility: Use the specified grease formulation and avoid mixing incompatible lubricants.
- Apply the prescribed quantity: Follow the bearing or motor service procedure rather than applying grease based only on visual judgment.
- Reassemble the bearing arrangement: Refit any removed covers, seals, or protective components according to the maintenance instructions.
- Inspect the surrounding components: Check the shaft, housing, and sealing arrangement for visible damage or contamination.
- Check operation after restart: Observe available temperature, vibration, and operating indications for abnormal behavior.
- Record the maintenance: Document the grease reference, quantity applied where recorded, bearing condition, and service date.
Related Components
| Component | Function |
|---|---|
| Ingersoll Rand 38034914 Motor Bearing Grease | Provides lubricant for specified motor-bearing applications |
| Electric Motor Bearing | Supports shaft rotation and carries operating loads |
| Bearing Housing | Locates and supports the bearing assembly |
| Bearing Seal | Helps retain grease and prevent contaminant ingress |
| Grease Fitting | Provides an application point on relubricatable bearing arrangements |
| Motor Shaft | Transfers rotational power to the driven equipment |
| Compressor Drive Motor | Supplies mechanical power to the compressor air end |
| Ingersoll Rand 24900433 Oil Filter | Filters contaminants from circulating compressor lubricant |
| Ingersoll Rand 48958201 Air Filter | Filters incoming air before compression |
| Compressor Vibration Monitoring Equipment | Helps assess rotating equipment condition where fitted |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Ingersoll Rand 38034914 | Motor Bearing Grease | Lubricating specified motor bearings |
| Ingersoll Rand 24900433 | Oil Filter | Filtering circulating compressor lubricant |
| Ingersoll Rand 48958201 | Air Filter Element | Filtering incoming compressor air |
| Ingersoll Rand 49007941 | Pre-Filter Pad | Preliminary filtration of intake air |
| Ingersoll Rand RS-Series | Rotary Screw Air Compressors | Industrial compressed-air generation |
| Ingersoll Rand Compressor Drive Motors | Electric Motor Assemblies | Driving compatible compressor air ends |
Key Advantages
- Provides a dedicated grease reference for specified motor-bearing maintenance.
- Helps reduce friction and wear when used according to the bearing service procedure.
- Supports planned maintenance of compatible Ingersoll Rand compressed-air equipment.
- Helps maintain the lubricating film required at bearing contact surfaces.
- Distinguishes motor-bearing grease from compressor oil and other filtration consumables.
Technical FAQs
What is the difference between 38034914 motor bearing grease and compressor oil?
Motor bearing grease is used at specified bearing locations, while compressor oil circulates through the oil-injected compression system for lubrication, sealing, and heat transfer. They serve different purposes and are not interchangeable unless the equipment specification explicitly permits it.
What does the POLYREX EM identification mean for this product?
Parts listings associate 38034914 with POLYREX EM motor-bearing grease. The grease formulation is relevant when selecting a replacement lubricant because bearing speed, temperature, and material compatibility influence lubrication requirements.
Can additional grease improve bearing service life?
Not necessarily. Correct lubrication supports bearing operation, but excessive grease can increase churning resistance and temperature. The amount applied should follow the applicable motor or bearing maintenance instructions.
What should be checked if a motor bearing becomes unusually hot after lubrication?
Check the amount and type of grease applied, bearing condition, shaft alignment, mechanical loading, and available vibration or temperature readings. Excessive grease, unsuitable lubricant, or existing bearing damage can all contribute to abnormal operating temperature.